18347860

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 21568940

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 131, 149, 188, 235, 262, 298, 470, 524, 596, 655, 745, 940, 1310, 1490, 2620, 2980, 6157, 7003, 12314, 14006, 19519, 24628, 28012, 30785, 35015, 39038, 61570, 70030, 78076, 97595, 123140, 140060, 195190, 390380, 917393, 1834786, 3669572, 4586965, 9173930, 18347860]

約数ペア:

[(1, 18347860), (2, 9173930), (4, 4586965), (5, 3669572), (10, 1834786), (20, 917393), (47, 390380), (94, 195190), (131, 140060), (149, 123140), (188, 97595), (235, 78076), (262, 70030), (298, 61570), (470, 39038), (524, 35015), (596, 30785), (655, 28012), (745, 24628), (940, 19519), (1310, 14006), (1490, 12314), (2620, 7003), (2980, 6157)]